Where does Sumitomo Electric Toyama Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Sumitomo Electric Toyama Co., Ltd. ranks #12,687 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Sumitomo Electric Toyama Co., Ltd. hold?

Sumitomo Electric Toyama Co., Ltd. holds 24 US utility patents granted between 2015 and 2022, spanning 23 technology areas.

What is Sumitomo Electric Toyama Co., Ltd.'s Innovation Score?

Sumitomo Electric Toyama Co., Ltd. has an Innovation Score of 40.3 out of 100 (top 36% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Sumitomo Electric Toyama Co., Ltd.'s patent grant rate increasing or decreasing?

Sumitomo Electric Toyama Co., Ltd.'s recent grant velocity is -50% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for Sumitomo Electric Toyama Co., Ltd.'s patents?

Sumitomo Electric Toyama Co., Ltd.'s patents average 7.0 claims each. This is an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

How is the Sumitomo Electric Toyama Co., Ltd. patent data sourced?

All patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office covering US granted utility patents from 2015 to 2025.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Sumitomo Electric Toyama Co., Ltd.

Q: What technology areas does Sumitomo Electric Toyama Co., Ltd. focus on?

Sumitomo Electric Toyama Co., Ltd.'s top technology area is H01M (Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy) with 19 patents, ranking #333 of 2,332 assignees active in that subclass. Grants appear in 23 CPC subclasses total.

USPTO PatentsView assignee record - 24 granted patents across 23 technology areas, recorded in grant years 2015–2022. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength. Primary class: H01M (Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Sumitomo ranks #12,687 of 49,997 tracked US assignees by granted-patent volume, with 24 patents across 23 technology areas.

#12,687
of 49,997 US assignees by volume: Top 36%
by Innovation Score (40.3/100): 7.0
avg claims per patent: -50%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R12687 · Foreign Corporation #12,687 · 24 grants

GRANTS-SMALL · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 24 grants
MID-PACK #12,687/49,997
PHOTO-FINISH Spin Transfer
CPC-FOCUS H01M · 23 areas
INNOV-PAR 40.3/100
CLAIMS-SPARSE 7.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -50% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Spin Transfer Technologies, Inc. (±0 grants)

Instrument codes from this assignee’s USPTO PatentsView grant sheet: volume band, corpus rank, photo-finish peer, lead CPC, Innovation Score, claim depth, assignee type, velocity, and book completeness. Not a USPTO rating of patent strength.

How Sumitomo’s 40.3 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 11.1 pts (28%) Velocity 8.0 pts (20%) Breadth 17.0 pts (42%) Claim depth 4.2 pts (10%)

Qualcomm Incorporated · highest

85
Sumitomo Electric… · this assignee

40
3D Lighting… · lowest

7

What this shows Sumitomo's Innovation Score is 40.3/100 (top 36% of the PatentsView-derived corpus). The chart places that score against the nearest Innovation Score peers plus corpus poles, not a reprint of the volume ranking.

Does more volume mean deeper claims for Sumitomo?

Each dot is one of Sumitomo’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). Sumitomo’s own 7.0 claims/patent is at or below the 17.6 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

Sumitomo vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Sumitomo's grants concentrate

Sumitomo Electric Toyama Co., Ltd. is a focused PatentsView assignee: 23 CPC subclasses with 79.2% of grants classified under H01M (Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy). Peak complete grant year is 2022 (6 grants) versus a trough of 1 in 2017. By volume, Sumitomo sits between Spin Transfer Technologies, Inc. and Syqe Medical Ltd..

Sumitomo's three-year grant acceleration

Sumitomo Electric Toyama Co., Ltd. shows 6 grants in 2022–2024 against only 5 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Spin Transfer

24
Spireon

24
Spredfast

24
Strata Products W…

24
Sunview Vineyards…

24
Surgentec

24
Symbotic Canada U…

24
Syqe Medical

24
Sumitomo Electric… ◀

24

What this shows Sumitomo holds 24 patents at rank #12,691, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sumitomo

By rank, the assignees closest to #12,691 in granted patent volume.

Leaders in H01M (Processes OR Means)

Other assignees with the most granted patents in Sumitomo's primary technology class.

Sumitomo's Innovation Score vs. every tracked assignee

Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)

40 Top 36% higher than 64% of 49,997 US assignees

Each bar is a band; taller bars hold more US assignees. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source USPTO PatentsView, PlainPatent Innovation Score · 2015–2025

USPTO utility patent grants by year · 2015–2022

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Sumitomo Electric Toyama Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	12.5%
2016	5	20.8%
2017	1	4.2%
2018	4	16.7%
2019	3	12.5%
2021	2	8.3%
2022	6	25.0%

Which technologies does Sumitomo Electric Toyama Co., Ltd. patent most?

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 19

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 18

C22C - Alloys 13

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 11

C25D - Processes FOR THE Electrolytic OR Electrophoretic Production OF COATINGS; ELECTROFORMING; Apparatus Therefor 9

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 9

B22F - Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder 9

H01G - CAPACITORS; Capacitors, Rectifiers, Detectors, Switching Devices, Light-sensitive OR Temperature-sensitive Devices OF THE Electrolytic Type 9

C22F - Changing THE Physical Structure OF Non-ferrous Metals AND Non-ferrous Alloys 7

Y10T - Technical Subjects Covered BY Former US Classification 6

H01B - CABLES; CONDUCTORS; INSULATORS; Selection OF Materials FOR Their Conductive, Insulating OR Dielectric Properties 3

B21C - Manufacture OF Metal Sheets, Wire, Rods, Tubes, Profiles OR Like Semi-manufactured Products Otherwise Than BY ROLLING; Auxiliary Operations Used IN Connection With Metal-working Without Essentially Removing Material 3

C23F - Non-mechanical Removal OF Metallic Material From Surface ; Inhibiting Corrosion OF Metallic Material OR Incrustation IN GENERAL; Multi-step Processes FOR Surface Treatment OF Metallic Material Involving AT Least ONE Process Provided FOR IN Class C23 AND AT Least ONE Process Covered BY Subclass C21d 2

Y02T - Climate Change Mitigation Technologies Related TO Transportation 2

H01R - Electrically-conductive CONNECTIONS; Structural Associations OF A Plurality OF Mutually-insulated Electrical Connecting ELEMENTS; Coupling DEVICES; Current Collectors 2

Top 15 of 23 technology areas

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

Sumitomo Electric Toyama Co., Ltd.'s patent record in context - here's where to go next.

Sumitomo Electric Toyama Co., Ltd.'s lead technology class is H01M (Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy), 79.2% of its portfolio - see every assignee active in that class. Explore H01M
Ranked #12,687 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sumitomo Electric Toyama Co., Ltd. against Spin Transfer Technologies, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 40.3/100 blends volume, velocity, technology breadth, and claim depth. How it's calculated

Figures reflect USPTO PatentsView grant data through May 2026; pending applications not yet granted are not counted.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the USPTO PatentsView database. Consult a qualified professional before making decisions based on this data.

Read our methodology - how this data is sourced, computed, and verified.

Data sources used on this page

USPTO PatentsView - the disambiguated bulk patent-grant, assignee, and CPC data this page's figures are derived from. patentsview.org
Cooperative Patent Classification (CPC) - the joint USPTO/EPO classification scheme used to group patents by technology area. cooperativepatentclassification.org
USPTO Patent Public Search - the official interface to verify the status of any individual patent. ppubs.uspto.gov

Compiled by PlainPatent, US Patent Intelligence Editorial Process · May 15, 2026

Every figure on PlainPatent is rendered directly from USPTO source data, no number is typed in by an editor. This page draws directly on USPTO source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.